Johann Stephan Rittangel (1606-1652) was a Christian Hebraist and Professor of Oriental Languages at the University of Königsberg (Prussia) from 1640 till his death. Born Jewish, he converted to Christianity (to Catholicism and afterward to Calvinism, and then Lutheranism). After making a translation of the Sefer Yetsirah into Latin in 1642, he made this translation of the Passover Haggadah. In the Haggadah, Rittangel included musical scores for two piyyutim popularly sung during the final course of the Passover seder: “Adir Hu” and “Ki Lo Na’eh.” . . .

The text of the popular counting song “Who Knows One?” in its original Hebrew, with a translation in Latin. . . .

A Latin translation of the popular Passover song, Ḥad Gadya. . . .

The text of the popular piyyut “Adir Bimlukhah” (a/k/a “Ki lo na’eh”) in Hebrew, with a Latin translation. . . .

The piyyut, Omets G’vurotekha by Elazar ha-Qalir, in its Latin translation by Johann Stephan Rittangel. . . .

The piyyut, Dayenu, in its Latin translation by Johann Stephan Rittangel. . . .

The alphabetic acrostic piyyut, Adir Hu, in its Latin translation by Johann Stephan Rittangel as found in his translation of the Pesaḥ seder haggadah, Liber Rituum Paschalium (1644). . . .

The piyyut, Omets G’vurotekha by Elazar ha-Qalir, in its Latin translation by Johann Stephan Rittangel. . . .

The text of the prayer Nishmat Kol Ḥai in Hebrew with a Latin translation . . .

The text of the short prayer ha-El b’Taatsumōt Uzekha in Hebrew with a Latin translation. . . .

The text of the short prayer uv’Maqhalōt in Hebrew with a Latin translation. . . .

The text of the short prayer Shokhen Ad in Hebrew with a Latin translation. . . .

The text of the prayer Yishtabaḥ Shimkha, in Hebrew with a Latin translation . . .